New spectroscopic data for atomic tungsten XIV

The thirteen times ionized tungsten is isoelectronic with PmI. Wavelengths and transition probabilities for the 5s-5p and 5p-5d transitions of WXIV, identifying the ground state as 4f13 5s2 2F7/2 were calculated. Both, a relativistic Hartree Fock approach, including core-polarization effects, and a purely relativistic multiconfiguration Dirac-Fock method were used for the calculations. Particularly, 5s-5p transitions were compared with experimental results obtained with VUV electron beam ion trap (EBIT) spectroscopy.Facultad de Ciencias Exacta

New spectroscopic data for atomic tungsten XIV

The thirteen times ionized tungsten is isoelectronic with PmI. Wavelengths and transition probabilities for the 5s-5p and 5p-5d transitions of WXIV, identifying the ground state as 4f13 5s2 2F7/2 were calculated. Both, a relativistic Hartree Fock approach, including core-polarization effects, and a purely relativistic multiconfiguration Dirac-Fock method were used for the calculations. Particularly, 5s-5p transitions were compared with experimental results obtained with VUV electron beam ion trap (EBIT) spectroscopy.Facultad de Ciencias Exacta

Revised and extended analysis of five times ionized Xenon, Xe VI

A capillary discharge tube was used to record the Xe spectrum in the 400-5500 Å region. A set of 243 lines of the Xe VI spectrum was observed, and 146 of them were classified for the first time. For all known lines, we calculated the weighted oscillator strengths (gf) and weighted transition probabilities (gA) using the configuration interaction in a relativistic Hartree-Fock approach. The energy matrix was calculated using energy parameters adjusted to fit the experimental energy levels. Core polarization effects were taken into account in our calculations. Experimental energy values and calculated lifetimes are also presented for a set of 88 levels. From these levels, 32 were classified for the first time and 33 had their values revised. Our analysis of the 5s5p5d and 5s5p6s configurations was extended in order to clarify discrepancies among previous works.Centro de Investigaciones ÓpticasFacultad de Ciencias Exacta

Revised and extended analysis of five times ionized Xenon, Xe VI

A capillary discharge tube was used to record the Xe spectrum in the 400-5500 Å region. A set of 243 lines of the Xe VI spectrum was observed, and 146 of them were classified for the first time. For all known lines, we calculated the weighted oscillator strengths (gf) and weighted transition probabilities (gA) using the configuration interaction in a relativistic Hartree-Fock approach. The energy matrix was calculated using energy parameters adjusted to fit the experimental energy levels. Core polarization effects were taken into account in our calculations. Experimental energy values and calculated lifetimes are also presented for a set of 88 levels. From these levels, 32 were classified for the first time and 33 had their values revised. Our analysis of the 5s5p5d and 5s5p6s configurations was extended in order to clarify discrepancies among previous works.Centro de Investigaciones ÓpticasFacultad de Ciencias Exacta

New spectroscopic data for atomic tungsten XIV

The thirteen times ionized tungsten is isoelectronic with PmI. Wavelengths and transition probabilities for the 5s-5p and 5p-5d transitions of WXIV, identifying the ground state as 4f13 5s2 2F7/2 were calculated. Both, a relativistic Hartree Fock approach, including core-polarization effects, and a purely relativistic multiconfiguration Dirac-Fock method were used for the calculations. Particularly, 5s-5p transitions were compared with experimental results obtained with VUV electron beam ion trap (EBIT) spectroscopy.Facultad de Ciencias Exacta

Revised and extended analysis of five times ionized Xenon, Xe VI

A capillary discharge tube was used to record the Xe spectrum in the 400-5500 Å region. A set of 243 lines of the Xe VI spectrum was observed, and 146 of them were classified for the first time. For all known lines, we calculated the weighted oscillator strengths (gf) and weighted transition probabilities (gA) using the configuration interaction in a relativistic Hartree-Fock approach. The energy matrix was calculated using energy parameters adjusted to fit the experimental energy levels. Core polarization effects were taken into account in our calculations. Experimental energy values and calculated lifetimes are also presented for a set of 88 levels. From these levels, 32 were classified for the first time and 33 had their values revised. Our analysis of the 5s5p5d and 5s5p6s configurations was extended in order to clarify discrepancies among previous works.Centro de Investigaciones ÓpticasFacultad de Ciencias Exacta

Energy Levels Of The Configurations 4s24p, 4s4p2, 4s24d, And 4s25p In Kr Vi, Obtained From A -pinch Light Source

The spectrum of Kr vi has been observed in the 4501000-A wavelength range, and 15 lines have been identified as transitions between levels of the 4s24p, 4s4p2, 4s24d, and 4s25p configurations. For seven of the lines the classification is new. All but three of the 14 levels that belong to the configurations have been determined. The result of this analysis is supported by isoelectronic comparisons along the Ga isoelectronic sequence. The configurations are interpreted by fitting the theoretical energy parameters to the observed levels with use of least-squares techniques. © 1988 The American Physical Society.38116616

Transitions And Energy Levels In The N=4 Complex Of Kr V

A FTHETA-pinch light source has been used to observe the spectrum of krypton ionized four times (Kr v) in the vacuum-ultraviolet region (432 2000 A), and 50 lines have been identified as combinations between levels of the 4s24p2, 4s4p3, and 4s24p4d configurations. For 19 of the lines the classification is new. All but four of the 27 levels that belong to the configurations have been determined. The energy parameters were obtained using Hartree-Fock calculations. The configurations are interpreted by fitting the theoretical energy expressions to the observed levels using least-squares techniques. Isoelectronic comparisons along the Ge i isoelectronic sequence have been used to support the experimental results. © 1989 The American Physical Society.4073911391

Revised And Extended Analysis Of Five Times Ionized Xenon, Xe Vi

A capillary discharge tube was used to record the Xe spectrum in the 400-5500 Å region. A set of 243 lines of the Xe VI spectrum was observed, and 146 of them were classified for the first time. For all known lines, we calculated the weighted oscillator strengths (gf) and weighted transition probabilities (gA) using the configuration interaction in a relativistic Hartree-Fock approach. The energy matrix was calculated using energy parameters adjusted to fit the experimental energy levels. Core polarization effects were taken into account in our calculations. Experimental energy values and calculated lifetimes are also presented for a set of 88 levels. From these levels, 32 were classified for the first time and 33 had their values revised. Our analysis of the 5s5p5d and 5s5p6s configurations was extended in order to clarify discrepancies among previous works.2161Biémont, E., Buchard, V., Garnir, H.-P., Lefèbvre, P.-H., Quinet, P., (2005) EPJD, 33, p. 181Biémont, E., Fischer, C.F., Godefroid, M.R., Palmeri, P., Quinet, P., (2000) PhRvA, 62, p. 032512Biémont, E., Pinnington, E.H., Quinet, P., Zeippen, C.J., (2000) PhyS, 61, p. 567Churilov, S.S., Joshi, Y.N., (2000) PhyS, 62, p. 358Churilov, S.S., Joshi, Y.N., (2001) PhyS, 64, p. 34Churilov, S.S., Joshi, Y.N., Gayasov, R.J., (2001) JOSAB, 18, p. 113Cowan, R.D., (1981) The Theory of Atomic Structure SpectraCowley, C.R., Hubrig, S., Palmeri, (2010) MNRAS, 405, p. 1271Curtis, L.J., (2003) Atomic Structure Lifetimes: A Conceptual ApproachDworetsky, M.M., Persaud, J.L., Patel, K., (2008) MNRAS, 385, p. 1523Edlén, B., (1964) Atomic Spectra, Handbuch der Physik, 27, p. 80Edlén, B., (1966) Metro, 2 (2), p. 71Fawcett, B.C., Bromage, G.E., (1980) JPhB, 13 (14), p. 2711Fawcett, B.C., Jones, B.B., Wilson, R., (1961) PPS, 78, p. 1223Fraga, S., Muszyńska, J., (1981) Atoms in External FieldsGallardo, M., Raineri, M., Reyna Almandos, J.G., (1995) PhyS, 51, p. 737García-Rojas, J., Peña, M., Morisset, C., Mesa-Delgado, A., Ruiz, M.T., (2012) A&A, 538, p. 84Gayasov, R., Joshi, Y.N., (1998) JOSAB, 15, p. 2614Gayasov, R., Joshi, Y.N., (1999) PhyS, 60, p. 312Hansen, J.E., Persson, W., (1987) PhyS, 36, p. 602Joshi, Y.N., Ryabtsev, A.N., Churilov, S.S., (2001) PhyS, 64, p. 326Kaufman, V., Sugar, J., (1987) JOSAB, 4, p. 1924Kelly, R.L., (1987) JPCRD, 16 (1), p. 1Kernahan, J.A., Pinnington, E.H., O'Neill, J.A., Bahr, J.L., Donnelly, K.E., (1980) JOSA, 70, p. 1126Kramida, A., Ralchenko, Yu., Reader, (2014) NIST Atomic Spectra Database (Version 5.2), Http://physics.nist.gov/asdLarsson, M.O., Gonzalez, A.M., Hallin, R., (1996) PhyS, 53, p. 317Migdalek, J., Baylis, W.E., (1978) JPhB, 11 (17), p. 497Otsuka, M., Tajitsu, A., (2013) ApJ, 778 (2), p. 146Otsuka, M., Tajitsu, A., Hyung, S., Izumiura, H., (2010) ApJ, 723 (1), p. 658Pagan, C.J.B., Cavalcanti, G.H., Jupén, C., Trigueiros, A.G., (2011) ApJS, 196 (2), p. 19Péquignot, D., Baluteau, J.-P., (1994) A&A, 283, p. 593Persson, W., Wahlström, C.-G., Bertuccelli, G., (1988) PhyS, 38, p. 347Quinet, P., Palmeri, P., Biémont, E., (1999) MNRAS, 307, p. 934Quinet, P., Palmeri, P., Biémont, E., (2002) JAIIC, 344, p. 255Raineri, M., Gallardo, M., Pagan, C.J.B., Trigueiros, A.G., Reyna Almandos, J., (2012) JQSRT, 113, p. 1612Reyna Almandos, J., Bredice, F., Raineri, M., Gallardo, M., (2009) PhyS, 134, p. 014018Reyna Almandos, J., Sarmiento, R., Raineri, M., Bredice, F., Gallardo, M., (2001) JQSRT, 70, p. 189Saloman, E.B., (2004) JPCRD, 33, p. 765Sarmiento, R., Reyna Almandos, J.G., Raineri, M., Gallardo, M., (1999) JPhB, 32 (12), p. 2853Sharpee, B., Zhang, Y., Williams, R., (2007) ApJ, 659 (2), p. 1265Sterling, N.C., Dinerstein, H.L., Hwang, S., (2009) PASA, 26, p. 339Tauheed, A., Joshi, Y.N., Pinnington, E.H., (1992) JPhB, 25 (22), p. 561Tauheed, A., Joshi, Y.N., Pinnington, E.H., (1998) JPhB, 31 (3), p. 393Tauheed, A., Joshi, Y.N., Rana, T., (2000) PhyS, 61, p. 696Tauheed, A., Zafaran, A.F., Joshi, Y.N., (1999) JPhB, 32 (12), p. 2917Valero, F.P.J., (1968) JOSA, 58, p. 1048Wang, M., Arnesen, A., Hallin, R., (1997) JOSAB, 14, p. 3277Wang, M., Larsson, M.O., Arnesen, A., (1996) JOSAB, 13, p. 2715Wang, M., Larsson, M.O., Arnesen, A., (1997) JOSAB, 14, p. 1515Werner, K., Rauch, T., Ringat, E., Kruk, J.W., (2012) ApJL, 753, p.